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Monitoring USB Port Usage
There is a footprint for 5x2 header (P4) on the
USB hub board. This header is not populated
and it is reserved for users who wants to monitor
the USB port usage remotely.
The figure below shows the naming of each pin within this header:
You can make use of these pins to build your own USB port usage monitor. Below is
an example:
The green (or yellow) LED (D1~D7) will indicate if the corresponding USB port is
currently being used, while the red LED (D8) is working as power indicator.
LED5
LED6
DRV
GND
LED7
LED1
LED2
3.3V
LED4
LED3
